1 // Copyright 2017 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_FILES_PLATFORM_FILE_H_ 6 #define BASE_FILES_PLATFORM_FILE_H_ 7 8 #include "base/files/scoped_file.h" 9 #include "build/build_config.h" 10 11 #if defined(OS_WIN) 12 #include "base/win/scoped_handle.h" 13 #include "base/win/windows_types.h" 14 #endif 15 16 // This file defines platform-independent types for dealing with 17 // platform-dependent files. If possible, use the higher-level base::File class 18 // rather than these primitives. 19 20 namespace base { 21 22 #if defined(OS_WIN) 23 24 using PlatformFile = HANDLE; 25 using ScopedPlatformFile = ::base::win::ScopedHandle; 26 27 // It would be nice to make this constexpr but INVALID_HANDLE_VALUE is a 28 // ((void*)(-1)) which Clang rejects since reinterpret_cast is technically 29 // disallowed in constexpr. Visual Studio accepts this, however. 30 const PlatformFile kInvalidPlatformFile = INVALID_HANDLE_VALUE; 31 32 #elif defined(OS_POSIX) || defined(OS_FUCHSIA) 33 34 using PlatformFile = int; 35 using ScopedPlatformFile = ::base::ScopedFD; 36 37 constexpr PlatformFile kInvalidPlatformFile = -1; 38 39 #endif 40 41 } // namespace 42 43 #endif // BASE_FILES_PLATFORM_FILE_H_ 44